/*
 * Copyright 2002-2007 Network Engine for Objects in Lund AB [neotechnology.com]
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.impl.nioneo.store;


public class DynamicRecord extends AbstractRecord
{
	private byte[] data = null;
	private char[] charData = null;
	private int length;
	private int prevBlock = Record.NO_PREV_BLOCK.intValue();
	private int nextBlock = Record.NO_NEXT_BLOCK.intValue();
	private boolean isLight = false;
	private int type;
	
	public DynamicRecord( int id )
	{
		super( id );
	}
	
	public int getType()
	{
		return type;
	}
	
	void setType( int type )
	{
		this.type = type;
	}
	
	void setIsLight( boolean status )
	{
		this.isLight = status;
	}
	
	public boolean isLight()
	{
		return isLight;
	}
	
	public void setLength( int length )
	{
		this.length = length;
	}
	
	public void setInUse( boolean inUse )
	{
		super.setInUse( inUse );
		if ( !inUse )
		{
			data = null;
		}
	}
	
	public void setInUse( boolean inUse, int type )
	{
		this.type = type;
		this.setInUse( inUse );
	}
	
	public void setData( byte[] data )
	{
		isLight = false;
		this.length = data.length;
		this.data = data;
	}
	
	public void setCharData( char[] data )
	{
		isLight = false;
		this.length = data.length * 2;
		this.charData = data;
	}
	
	public int getLength()
	{
		return length;
	}
	
	public byte[] getData()
	{
		assert !isLight;
		assert charData == null;
		return data;
	}
	
	public boolean isCharData()
	{
		return charData != null;
	}
	
	public char[] getDataAsChar()
	{
		assert !isLight;
		assert data == null;
		return charData;
	}
	
	public int getPrevBlock()
	{
		return prevBlock;
	}
	
	public void setPrevBlock( int prevBlock )
	{
		this.prevBlock = prevBlock;
	}
	
	public int getNextBlock()
	{
		return nextBlock;
	}
	
	public void setNextBlock( int nextBlock )
	{
		this.nextBlock = nextBlock;
	}
	
	@Override
	public String toString()
	{
		StringBuffer buf = new StringBuffer();
		buf.append( "DynamicRecord[" ).append( getId() ).append( "," ).append( 
			inUse() );
		if ( inUse() )
		{
			buf.append( "," ).append( prevBlock ).append( "," ).append( 
				isLight ? null : data.length ).append( "," ).append( 
				nextBlock ).append( "]" );
		}
		return buf.toString();
	}
}
